To view my book: https://guidebook.jolua.com/
Some early iterations for the Homunculus Cyborg, a biosynthetic warrior that represents the main attack force of the SWORD (An organisation that protect humanity survival.)
I had to design the skeletal systems and the muscular systems, to be a modular and upgradeable base. Also a sarcophagus to act as aerial entry and checkpoint.
You can view the project artbook pages on the chief artist profile https://www.artstation.com/huzhongjie and also learn more about the game and the other artists involved.
You also find some sort of video below so you get a vibe of the game.